//: C11:Reference.cpp
// From Thinking in C++, 2nd Edition
// Available at http://www.BruceEckel.com
// (c) Bruce Eckel 1999
// Copyright notice in Copyright.txt
// Simple C++ references

int* f(int* x)
{
    (*x)++;
    return x; // Safe; x is outside this scope
}

int& g(int& x)
{
    x++; // Same effect as in f()
    return x; // Safe; outside this scope
}

int& h()
{
    int q;
//!  return q;  // Error
    static int x;
    return x; // Safe; x lives outside scope
}

int main()
{
    int a = 0;
    f(&a); // Ugly (but explicit)
    g(a);  // Clean (but hidden)
} ///:~
